Account-finding machine



Dec. 28 1926.

E. L. RELLER ET AL ACCOUN'I,` FINDNG MACHINE Filed'Nov. a, 1920 5 Sheets-Sheet 1 Dec. 28 ,192@ 1,612,221

E. L. RELLER ET AL- ACCOUNT FINDING MACHINE Filed Nov. 8. 1920 5 Sheets-Sheet 2 Dec. 28 1926.

E.' L. RELLER ET AL ACCOUNT FINDING MACHINE Filed Nov. 8,119201 3 Sheets-Sheet 5 Patented Dec. 28, 1926.

reisen Parser cries.

JN TED STATES EDWN L. BELLER AND VICTOR R. A. STRDl-', OF ST. LO'US. MSSURI, LSSGNGRS T0 THE WATTERS CORORATCN, F U'L'MINGTON. EELAW'ARE, 3. CORRTION GF DELAVARE.

ACCOUNT-FINDING MACHNE.

Application lefl November S, 1920.

This invention relates to driving mechanisms and means for starting, stopping and controlling the same. The mechanism illustrated applies more particularly to driving means such as used in connection with the account finding machine described in copending application Serial lumber 352,601. tiled January 19, 1.920.

is such machines are Otten motor driven so as to save the time and effort ot the operator, it is desirable to provide for automatically stopping the motor when the operator leaves the machine 'for an extended period, in order to avoid a waste ot electric power by allowing; the motor to run when there is no need ot its service. Such means should be entirely automatic in order to guard against torgettulness or negligence on the part ot the operator.

One ot the objects ot this invention is to provide means for driving` such a machine in which the source of driving power will be automatically stopped at the end of a predetermined time interval in case the oper-ai tor should tail to stop it.

Another object of this invention isy to provide such driving means in whichthe driving source oll power is maintained .continuously available so long as the device is in use. but in which said source will be rendered inoperative upon the lapse ot a predetermined time interval after such use has ceased.

Further objects will appear from the tollowing description taken in connection with the companying drawings in which:

l* igure 1 is a plan view ot' the controllingl device;

Figure 2 is a view partly in section taken on line 2 2 of Figure 5 and showing the time switch;

Figure 3 is an end View of the controlling`r mechanism taken on line 3-3 ,of Figure 5 and of' which Figure 1 is a top view;

Figure 4 is a detail sectional view taken on line 1 -4t of Figure 5,

Figure 5 is a sectional view of the driv ing and controlling mechanism;

Figure G is a view partly in section showing the relation of the driving and controlling mechanism to the driven device; and

Figure 7 is an outline view ot the driven device showing the arrangement ot the manipulative elements.

Serial No. 422,660.

Referring now to the accompanying drawings, 1 designates a. constant-speed electric motor or a similar driving` element connected to the main drive shatt 2. rlhe shaft 2 carries a worm 3 meshing with a worm wheel 4L. r[he worm wheel l is mounted 6U upon a sleeve 5 having a bearing in the housing 6, and having a running t over the short shaft 7 which in turn has a bearing` in the end plate 8. Tie worm wheel 1 is -keyed to the sleeve 5 by means ot" the small 65 pins 9.

The worm wheel at is bored out to provide a chamber 1() in which a cam member l1 is adapted to rotate, said member being [ined to the shait 7 by means ot a pin in a well known manner. The member 1l has cam 'laces 1Q symmetrically disposed and adapted for cooperation with a set of rollers or dogs 13 and the inner cylindrical Aface ot the chamber l0, to lock the shaft T and the worin wheel together when the driving` eti'ort is in one direction of rotation, and to release them when said etl'ort is in the opposite di rec/tion. Mounted on opposite sides ot the cam member are two plates 111 and 15 connected together by means ot studs or rivets 16 passing through circumferential slots 1T in the member 11. These plates are adapted to rotate about the hub ot the member 1l within the limits allowed by the slots 1T. S5 The dogs or rollers 1,3 have reduces'l end portions adapted to work in radial slots 18 in the plates 14 and 15. A spring 19 is attached at one end to the plate 15 and at the other end to a pin 2O passingl e0 through a circumterential slot in the plate 15 and fixed to the cam member 11. The function ot the spring` 19 is to move the cam member 11 and the connected plates liland 15, and thereby the rollers 13, in such 95 a direction with respect to one another as to cause said rollers to engage between the cam surface 12 and the interior face ol the chamber 10 so as to lock the shaft 7 to the worm wheel 4.

The outer edge of the plate lili has a spiral shape, adapted to form a notch or tooth 21 adapted to engage a stop member connected with the manipulative mechanism. when said stop member is positioned in the path ot' said tooth. As the driving en'ort is in such a direction as to cause rotation in the direction indicated by the arrow in roo Figure 6, it will be seen that when the stop member 22 is positioned to engage the tooth 2l, the plate 14 will be arrested thereby, with the result that the rollers 18 will be moved so as to disengage the clutch member 11 from the worm wheel 4 thereby arresting the rotation ofi the shaft 7. The shaft 7 is connected to operate the accounting; device through the crank and the link 24.

lt will be seen that when the stop 22 is moved out o'f engagement with the tooth 21, the spring; 19 will move the plates 14 and 15 so as to carry the dogs 13 into entfag'ement with the cam tacos 12 and the inner rim ol' the worm wheel 4, thereby connecting' the shaft 7 so as to be driven by the shaft 2 to operate the accounting; device. lt will also be seen that when the stop member 22 engages the dog' 21 the motion ol" the shaft 7 will be arrested.

rlhe stop member 22 is connected to a lever 25 pivoted at 26 the other end ot which is connected by means ot a link 27 to an arm 28 on a roch shatt 29. rlhe shaft 25) carries a pair ot arms 30 the outer ends ot' which engage pins 31 on a pair oli bell cranks 32 pivoted at 83` the other arms ot said liell cranks engaging' pins 34 on the side bars 35 or" a maniiiiulative key 86. lt will be 1 seen that by pressing down on thn key 86,

the bell crank 32 will be roclred to move the arm 30 to the lett, Figure 6, thereby rotating' the rock shaft 29 so to move the arm 28 downwardly and. through tl e link 27, to actuate the lever 25 so as to lift the stop member' 22 out of engagement with the Ytooth 21 thereby starting the mechanism. rl`hese parts being;l spring returned as shown, the member 22 will move into engagement with the tooth 21 upon release of the hej.' 36. but not until the shatt 7 has made one complete revolution.

Referring' now to Figures 1 to 5 inclusive. the sleeve 5 has mounted on the end thereof. the driving member 37 ot an intermittent reduction gear comprising' said driver1 and the 'follower 88. The 'follower 38 is mounted on a shaft 39 having bearings in the housing 40 and carrying' near its other end a worm 41 engaging' a worm wheel 42 secured to a short shaft 43 having' av bearing at one end in the end plate 44` and at the other in the housing 40. Fixed to the shaft 43 is a driving); member 45 having cani faces 46 symmetrically disposed. @n opposite sides ot' the drivingv member 45, are plates 47 and 48 loosely mounted on the sha-ft 43. Said plate are fastened together by means ot studs 49 passing' loosely through circumferential slots 5() in the member 45. The outer edge ot the plate 47 is provided with ratfhet teeth adapted to engage a dos' 51 hereinatter described.

'A spring; 52 is fastened one eno to the '-.ilate 47 and at the other to a pin 53 passing through a circumferential slot 54 in said plate and fixed to the driving member 45. Loosely mounted on the shaft 43 is a flanged member 55, the flange of which is adapted to surround the plate 48 and the driving; member 45. Disposed between the inner lace of the flange oi the member 55 and the cam faces 46 on the drivingi` member 45, is a pair ot rollers or dogs The dogs 56 are so placed that when the driving.;` effort ot' the member 45 is in the direction shown by the arrow in Figure 4, said dogs will be confined between the cam 'faces 46 of the flange ot the member 55, thereby locking said flanged member to said drivingr member so as to drive said flanged member lt will be seen that when the driving` effort is in the opposite dire. tion, said flanged member 55 will be released from said driving' member 45. The rollers 56 are provided with reduied ends adapted to work loosely in radial slots 57 in the plates 47 and 48 so that said rollers may be moved into and out ot locking,r engagement by the movement ot .sai d plates relatively to the drivingl member 45. It will be seen that the spring- 52 will normally move the plate 47 and its con` neet-ed plate relatively to the driving member 45 so that the rollers 56 will be moved into locking' engagement with the driving member 45 and the flanged member 55.

Loosely mounted on the shatt 43 and fixed to the flanged member 55 is a `e'rooved collar 58 also mounted loosely on the shaft 43, and fixed to the collar 58 is an insulating membei' 59 carrying' on its outer edge a sectional metallic rim 60. Said rim 60 has a gap at one point in its circumference to accommodate a projection 61 on the insulating member 59. The projection 61 is machined Hush with the outer cylindrical surface of the rim 60. The insrdatingY member 59 carries a collar 62 also ot insulatingl material having' a projection 63 adapted to .torni a stop as hereina'tter described. The flaneed member 55, the collar 58, the insulating` memberV 59 and its collar 62 are all connected together and are adapted to turn together upon the shaft 48. The collar 58 has attached thereto a flexible strap 64 the other end of which is attached to the spring 65 anchored to the housing. The spring' 65 acts through the strap 64 to turn the combination 55, 58 and 59 so as to bring' the stop 68 against fi pin 66 on the housing 40.

The metallic Vmember 60 is adapted toY form a rotating switch Contact and has bearing upon it a pair of brushes 67 of carbon or other suitable material adapted to collect electric current from the rim 60. Said brushes 67 are mounted upon rods 68, each mounted in plug` 69 and held in engagement with the Contact 60 by vmeans of a spring' 70 as shown in Figure 5. lil/lith the switch Contact 60 in the position shown in Figure 2, electric current may be passed through the switch from one of the studs 68 to its brush 67, thence through the rim 60 tothe other brush 67 and out to the second stud 68. If now the switchA contact 60 is rotated in the direction shown by the arrow in Figure 2, the projection 6l will move round until it will eventually pass under one of the brushes 67. At the moment when the brush 67 moves olf of the metallic rim 60 so as to rest wholly upon the insulating projection 6l, the electrical circuit from one stud 68 to the other will b e broken.

rlhe operation of the device is as follows: rlhe circuit to the motor l is made to pass through the switch shown in Figure 2 by connecting to the studs 68. With the motor running, the worm 3 will drive the worm wheel 4 continuously so long as the motor runs, thusV rendering the. source of power continuously available for driving the mechanism. Upon depressing the key 36, the stop member 22 will, as described above, be moved out ofv engagement with the tooth 2l'. lThis willY allow the shaft 7 to make one revolution to operate the mechanism through the arm 24, after which said plate 14 will be arrested by the. engagement of the tooth 2l with the stop 22 thereby releasing the rollers 13 from locking engagement with the cam faces l2 4and stopping the shaft? 7. Thus each depression of the key 36 will result in the operation of the mechanism through. one cycle.

T he rotating worm wheel 4, through the sleeve 5, the driving member 37, follower 38, shaft S9 and worm 4lv will rotate the worm wheel 42, but at a very much reduced speed on account of the high reduction ratio be tween the parts 37 and 38 and the worm gear 4l and 42. The worm. gear 42. drives the shaft 43 and since the spring'52. maintains the rollers 5.6 in lockingy engagement,

.the member 55 and the switch contact memfor the insulating plug 61 to travel from the position shown in Figure 2 around to circuitopening position about five minutes.

Att-ached to the rock shaft 29 is an arm 7l connected by means of a link 72 to one arm of a bell crank 73, pivoted at 74, the other arm of which is connected to a bar 7 which enters the switch housing 40 and carries at its inner end the dog 5l, pivoted onV the armi 75 at 7.6 and held by. a spring 77 against a stop` 7.8. At eac-h depression of the key 3.6, through the agencyy of the arms '30, and the rock shaft .29 acting as described above, the link 72 and the bell crank 73, the barr 75y will be pushed inwardly, or tothe right as shown in Figures l and 4. Upon such movement the dog 5]. will engage the ratchet teeth of the plate 47 thereby turning said plate in the direction indicated by the arrow, in Figure 4, sov as to move the dogs 56.0ut of locking engagement, therebyv releasing the member 55 and allowing the spring 65 to turn the switch contact backk until. the stopi 63 engages the pin 66. lt will be seen, therefore, that at every depression of the key 36, the driven mechanism will be operated through one cycle of operations and at the same time the time switch shown in Figure 2 will be reset so as to extend the time interval during which the source .of power is maintained available. It will also be seen that when the key 36 is not depressed for an extended time interval as, for instance, when the op erator leaves the machine, the time switch will operate after a predetermined time interval to render the driving means inoperative and stop the apparatus.

It is obvious that. various changes may be made in the details ofl construction without departing from the spirit of this invention; it is, therefore, to be understood, that this invention is not to be limited to thel specific details shownv and described.

Having thus described the invention what is claimed is l. ln an electrically operated mechanism having a supply circuit, an automatic switch having a progressively moving Contact, driving means, a clutch connecting said switch with saidv drivingmeans to move said contact independently of said mechanism, means operating after a predetermined time intervalto open said switch and stop safid driving means,vmeans for releasing said clutch, andmenns for closing said switch to start said driving means.. K

2. In an electrically operated mechanism having a supply circuit, an automatic switch having a progressively moving contact, driving means, a clutch connecting said switch with said driving means to move said Contact independently of said mechanism, means operating after a predeterniined time interval to open said switch and stop said driving means, means operating upon manipulation of said mechanism for releasing said clutch, and means for closing said switch to start said driving means.

3. In an electrically operated mechanism having a supply circuit, an automatic switch having a progressively moving contact, driving means, a clutch connecting said switch with said driving means to move said contact independently of said mechanism, means operating after a predetermined time interval to open said switch and stop said driving means, means for releasing said clutch, and mea-ns adapted to reset said switch for timed operation.

Li. An automatic time switch, comprising, a moving contact, driving means adapted to progressively move said contact, a clutch connecting said contact to said driving means, and means for releasing said clutch.

An automatic time switch, comprising, a moving contact, driving means adapted to progressii-ely move said Contact, a clutch having a driving member, a driven member and an intermediate locking member, adapted to connect said contact t-o said driving means, and means engaging said locking member adapted to release said clutch.

G. An automatic time switch, comprising, a moving contact, driving means adapted to progressively move said contact, a clutch connecting said contact to said driving means, means for releasing said clutch, and means for resetting said switch.

T. An automatic time switch, comprising, a moving contact, driving means adapted to progressively move said contact, a clutch connecting said contact to said driving means, means for releasing said clutch, and means operating upon release ot said clutch to reset said switch.

8. In a power driven mechanism, driving means, a clutch connecting said means to the mechanism, means for releasing said clutch after a predetermined operation of the mechanism, an automatic time switch having a progressively moving contact independently connected to said driving means to move said Contact and adapted for operation after a predetermined time interval tostop said driving means, and means adapted to simultaneously engage said clutch and reset said switch for timed operation.

9. In a power driven mechanism, driving means, a clutch connecting said means to the mechanism, means for releasing said clutch after a predetermined operation of the mechanism, an automatic switch having a progressively moving contact independently connected for operation by said driving means and adapted to stop said driving mea-ns aiter a predetermined time interval, and means adapted to simultaneously engage said clutch and reset said switch for timed operation.

l0. In a power driven mechanism, driving means, a clutch connecting said means to the mechanism, means for releasing said clutch after a predetermined operation of the mechanism, an automatic switch having a progressively moving contact, means yieldingly opposing movement of said contact, a clutch adapted to connect said cont-act 'for operation by said driving means to stop said driving means ai'ter a. predetermined time interval, and means adapted to simultaneously engage said iii-st clutch and release said second clutch.

l1. An automat-ic time switch, comprising, a moving contact, driving means adapted io move saidrcontact through a series of closed-circuit positions to open-circuit position, a clutch conecting said Contact to said driving `means, and means for releasing said clutch.

l2. n automatic time switch, comprising, a moving contact, driving means adapted to move said contact uniformly through a series of closed-circuit positions to opencircuit position, a clutch connecting said contact to said driving means, and means for releasing said clutch. Y

13. in automatic time switch, comprising, a moving Contact, yieldingmeans opposing the movement of said contact, driving means adapted to move said contact through a series of closed-circuit positions to opencircuit position, a clutch connecting said contact to said driving means, and means for releasing said clutch. i

In testimony whereof We aiiiX our signatures this 22nd day of September, 1920.

' EDWIN L. RELLER.

vieron n. A. s'rnon. 

